src/content/renderer/media/media_stream_source_observer.h

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CONTENT_RENDERER_MEDIA_MEDIA_STREAM_SOURCE_OBSERVER_H_
   6 #define CONTENT_RENDERER_MEDIA_MEDIA_STREAM_SOURCE_OBSERVER_H_
   7
   8 #include "base/compiler_specific.h"
   9 #include "base/memory/ref_counted.h"
  10 #include "base/threading/non_thread_safe.h"
  11 #include "content/common/content_export.h"
  12 #include "third_party/libjingle/source/talk/app/webrtc/mediastreaminterface.h"
  13 #include "third_party/WebKit/public/platform/WebMediaStreamSource.h"
  14
  15 namespace content {
  16
  17 class MediaStreamSourceExtraData;
  18
  19 // MediaStreamSourceObserver listens to events on MediaSourceInterface and
  20 // notify WebKit. It will be owned by MediaStreamSourceExtraData.
  21 class CONTENT_EXPORT MediaStreamSourceObserver
  22     : NON_EXPORTED_BASE(public webrtc::ObserverInterface),
  23       NON_EXPORTED_BASE(public base::NonThreadSafe) {
  24  public:
  25   MediaStreamSourceObserver(webrtc::MediaSourceInterface* webrtc_source,
  26                             MediaStreamSourceExtraData* extra_data);
  27   virtual ~MediaStreamSourceObserver();
  28
  29  private:
  30   // webrtc::ObserverInterface implementation.
  31   virtual void OnChanged() OVERRIDE;
  32
  33   webrtc::MediaSourceInterface::SourceState state_;
  34   scoped_refptr<webrtc::MediaSourceInterface> webrtc_source_;
  35   MediaStreamSourceExtraData* extra_data_;
  36
  37   DISALLOW_COPY_AND_ASSIGN(MediaStreamSourceObserver);
  38 };
  39
  40 }  // namespace content
  41
  42 #endif  // CONTENT_RENDERER_MEDIA_MEDIA_STREAM_SOURCE_OBSERVER_H_